More and more people are worried about the environment problem. They think: “While factories continue to manufacture goods, and people continue to drive cars, the world will never solve its pollution problem.” I do not agree with this statement. Factories continue to manufacture goods, people continue to drive cars, but at the same time, a lot of people work hard on the environment problem. Now many factories have began to change their produce model, for another model called “Clear Produce”. For example, a number of factories have research. Cars can give off a lot of dirty air. If we want to solve the pollution problem, we must solve the exhaust problem._________________Well begin is half done!
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